u-boot/drivers/usb/host/ehci-pci.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

153 lines
3.5 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*-
* Copyright (c) 2007-2008, Juniper Networks, Inc.
* All rights reserved.
*/
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <pci.h>
#include <usb.h>
#include <asm/io.h>
#include "ehci.h"
/* Information about a USB port */
struct ehci_pci_priv {
struct ehci_ctrl ehci;
};
#ifdef CONFIG_DM_USB
static void ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr,
struct ehci_hcor **ret_hcor)
{
struct ehci_hccr *hccr;
struct ehci_hcor *hcor;
u32 cmd;
hccr = (struct ehci_hccr *)dm_pci_map_bar(dev,
PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
hcor = (struct ehci_hcor *)((uintptr_t) hccr +
HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
debug("EHCI-PCI init hccr %#lx and hcor %#lx hc_length %d\n",
(ulong)hccr, (ulong)hcor,
(u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
*ret_hccr = hccr;
*ret_hcor = hcor;
/* enable busmaster */
dm_pci_read_config32(dev, PCI_COMMAND, &cmd);
cmd |= PCI_COMMAND_MASTER;
dm_pci_write_config32(dev, PCI_COMMAND, cmd);
}
#else
#ifdef CONFIG_PCI_EHCI_DEVICE
static struct pci_device_id ehci_pci_ids[] = {
/* Please add supported PCI EHCI controller ids here */
{0x1033, 0x00E0}, /* NEC */
{0x10B9, 0x5239}, /* ULI1575 PCI EHCI module ids */
{0x12D8, 0x400F}, /* Pericom */
{0, 0}
};
#endif
static void ehci_pci_legacy_init(pci_dev_t pdev, struct ehci_hccr **ret_hccr,
struct ehci_hcor **ret_hcor)
{
struct ehci_hccr *hccr;
struct ehci_hcor *hcor;
u32 cmd;
hccr = (struct ehci_hccr *)pci_map_bar(pdev,
PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
hcor = (struct ehci_hcor *)((uintptr_t) hccr +
HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
(u32)hccr, (u32)hcor,
(u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
*ret_hccr = hccr;
*ret_hcor = hcor;
/* enable busmaster */
pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
cmd |= PCI_COMMAND_MASTER;
pci_write_config_dword(pdev, PCI_COMMAND, cmd);
}
/*
* Create the appropriate control structures to manage
* a new EHCI host controller.
*/
int ehci_hcd_init(int index, enum usb_init_type init,
struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor)
{
pci_dev_t pdev;
#ifdef CONFIG_PCI_EHCI_DEVICE
pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
#else
pdev = pci_find_class(PCI_CLASS_SERIAL_USB_EHCI, index);
#endif
if (pdev < 0) {
printf("EHCI host controller not found\n");
return -1;
}
ehci_pci_legacy_init(pdev, ret_hccr, ret_hcor);
return 0;
}
/*
* Destroy the appropriate control structures corresponding
* the the EHCI host controller.
*/
int ehci_hcd_stop(int index)
{
return 0;
}
#endif /* nCONFIG_DM_USB */
#ifdef CONFIG_DM_USB
static int ehci_pci_probe(struct udevice *dev)
{
struct ehci_hccr *hccr;
struct ehci_hcor *hcor;
ehci_pci_init(dev, &hccr, &hcor);
return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST);
}
static const struct udevice_id ehci_pci_ids[] = {
{ .compatible = "ehci-pci" },
{ }
};
U_BOOT_DRIVER(ehci_pci) = {
.name = "ehci_pci",
.id = UCLASS_USB,
.probe = ehci_pci_probe,
.remove = ehci_deregister,
.of_match = ehci_pci_ids,
.ops = &ehci_usb_ops,
.platdata_auto_alloc_size = sizeof(struct usb_platdata),
.priv_auto_alloc_size = sizeof(struct ehci_pci_priv),
.flags = DM_FLAG_ALLOC_PRIV_DMA,
};
static struct pci_device_id ehci_pci_supported[] = {
{ PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0) },
{},
};
U_BOOT_PCI_DEVICE(ehci_pci, ehci_pci_supported);
#endif /* CONFIG_DM_USB */